National Lost Sock Memorial Day
Saturday, May 9, 2026
National Lost Sock Memorial Day is a light-hearted observance on the first Saturday of February that honours the socks lost to washing machines and celebrates the strange places socks are found. It is a playful, unofficial holiday rather than a public holiday.
History
The observance was started in the United States as a tongue-in-cheek way of marking the everyday loss of socks. Each first Saturday in February, people set aside one sock to remember the ones that went missing in the wash, and the custom has spread through social media and community groups. It has no legal status and is observed entirely on a voluntary basis.
How It's Celebrated
Households leave a single sock out on the first Saturday of February, often with a note attached explaining where its partner went missing. Friends and coworkers post their own missing-sock stories online, and local groups sometimes host sock-swap gatherings. The day is mostly celebrated online and at home.